Collapsible oven for camp stove



E. E. LIT TLE T COLLAPSIBLE OVEN FOR CAMP STOVE March 14, 1967 3Sheets-Sheet 1 Filed Aug. 6, 1965 INVEN TORS: ELLWOOD E. LITTLE I WILBURJ. TOW flmlgmfjm dl lg NSEND ATT'Ys March 14, 1967 E. E. LITTLE ET AL3,308,807

COLLAPSIBLE OVEN F OR CAMP STOVE Filed Aug. 6, 1965 3 Sheets-Sheet 2 34I5 200 FIG. l5

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l3 24 INVENTORS ELLWOOD E. LI LE WILBUR J. OWNSE AT T'YS March 14, 1967E. E. LITTLE ET AL 3,308,807

COLLAPSIBLE OVEN FOR CAMP STOVE Filed Aug. 6, 1965 3 Sheets-Sheet 5 IINVENTORS ELLWOOD E. LITTLE WILBUR J. TOWNSEND ATT'YS United StatesPatent 3,308,807 COLLAPSIBLE OVEN FOR CAMP STOVE Ellwood E. Little andWilbur J. Townsend, Wichita, Kans., assignors to The Coleman Company,Inc., Wichita, Kans., a corporation of Kansas Filed Aug. 6, 1965, Ser.No. 477,697 8 Claims. (Cl. 126275) This invention relates to acollapsible oven for a camp stove, and more particularly to an improvedconstruction of a camp stove oven, which facilitates the collapsing andstorage of the oven and its associated components. The collapsible ovensconstructed in accordance with the present invention have particularutility for use with the larger camp stoves, such as those having two ormore burners. Although only one burner is operated to heat the oven, thelarger top surface of camp stoves having two or more burners provides abetter support for the oven. It will be understood, however, that theoven may be made in smaller sizes, and otherwise adapted for use on asingle burner camp stove. The camp st-oves may use any of the knownliquid or gaseous fuels for such stoves, and will otherwise be operatedin accordance with well known practices.

Collapsible ovens for camp stoves of various designs have been on themarket in the United States for many years. While such ovens includefolding panel members which permit the oven to be collapsed to arelatively compact condition for storage, the appearance of the ovens incollapsed condition has not been attractive, sharp edges and corners ofthe oven have been left exposed, and the oven in collapsed condition hasnot been as compact as would be desirable. In particular, nosatisfactory means has been provided for storing certain components ofthe oven, such as the rack or grate, and the heat deflector or baflle.The racks, of which one or more maybe provided, are supported within theoven to support cooking utensils during the operation of the oven, butmust be removed from the oven to permit it to be collapsed. However, inconnection with the storage and transportation of the oven in collapsedcondition, it is undesirable to have the rack as a separate part. Theheat baffle, which is normally mounted on top of the bottom panel of theoven, has prevented the bottom panel from being folded inside the ovenin the collapsed condition, and when folded on the outside of thecollapsed oven, it presents sharp edges and corners which areobjectionable in appearance and interfere with the easy handling of thecollapsed oven.

It is a general object of the present invention to provide a collapsiblecamp oven which substantially overcomes the problems and diflicultiesdescribed above. More specifically, it is an object to provide acollapsible oven for a camp stove which provides a more attractive,convenient, and compact package in the collapsed condition of the oven.In this connection, it is an object to provide the oven with storagecompartments for components such as the racks and heat baflles, thestorage compartment being provided in the oven in its collapsedcondition. Another object is to provide improved means for latching theoven panels in both erect and collapsed condition, and improved meansfor connecting the adjacent edges of the panels when the oven is inerect condition. Further objects and advantages will be indicated in thefollowing detailed specification.

This invention is shown in an illustrative embodiment in theaccompanying drawings, wherein:

FIGURE 1 is a perspective view of the oven seated on the top of a campstove;

FIGS. 2-7 are perspective views illustrating successive stages insetting up the oven from its collapsed condition to its erect condition;

FIG. 8 is a front elevational view of a rack used with the oven, therack being shown in its storage orientation;

FIG. 9 is a further front elevational view of the rack of FIG. 8, therack being shown in a different orientation for insertion into the erectoven;

FIGS. 10-13 are perspective views of the oven, illustrating successivestages in the collapsing of the oven;

FIG. 14 is a side sectional elevational view taken on lines 14-14 ofFIG. 7;

FIG. 15 is a sectional plan view taken on line 1515 of FIG. 14;

FIG. 16 is a fragmentary perspective view of the tab and socket meansfor connecting the edges of the panels;

FIG. 17 is a perspective view of the lever which is used in the latchingmeans which are operative to latch the side and bottom panels in theirerect condition, and the oven in its collapsed condition;

FIG. 18 is a fragmentary perspective view of the latch means as itoperates to latch the oven in collapsed condition;

FIG. 19 is a fragmentary side sectional view showing the latch means ofFIG. 18 in its secured position;

FIG. 20 is a perspective view of the same latch means as it operates tolatch the top or bottom panels in erect condition;

FIG. 21 is a fragmentary side sectional view showing the latch means ofFIG. 20 in its secured condition; and

FIG. 22 is a perspective view of the flame and heat baflle which is usedwith the stove and more particularly with the bottom panel thereof.

- Looking first at FIGURE 1, there is shown a collapsible oven 0 whichis mounted on the upper surface of a typical two-burner camp stove S.The stove is provided with a gasoline tank T, a burner control knob K, agrate G, a lid L, and wind deflectors D. The oven 0 has its bottomresting on the grate G, and is centered over one of the burners of thestove. To provide wind protection for the oven, the lid L may extendalong the rear of the oven, while the wind deflectors D partiallyenclose the sides of the oven.

The oven is shown on the stove in its fully erect, operationalcondition. In FIG. 2, the same oven 0 is shown in its fully collapsed,storage condition. The oven of this invention is therefore characterizedby having an erect position and a collapsed position, which arerespectively illustrated by FIGS. 1 and 2.

FIGS. 2-7 illustrate different stages in setting up the oven fromcollapsed to erect condition. In FIGS. 10-13, dilferent stages in thecollapsing of the oven are illustrated. First, having particularreference to the oven in its erect condition, as shown, for example, inFIG. 7, it will be noted that the oven is of rectilinear configurationand has an interior cooking space enclosed by a front panel 10 whichincludes a door 11, a back panel 12, side panels designated generally bythe numbers 13 and 14, a top panel 15, and a bottom panel 16. A handle17 is attached to the top of top panel 15, and a flame and heat batfleor deflector 18 is mounted on the top of bottom panel 16. Within theoven, there is provided a removable and selectively positionable rack orgrate 19.

As shown more clearly in FIGS. 14 and 15, the even of the presentinvention includes a storage compartment providing flange meansdesignated generally by the num- 'bers 20 and 21, which respectivelyextend inwardly from the perimeters of front panel 10 and back panel 12.The flange means 20 includes a top section 20a, a bottom section 20b,and side sections 200 and 20d, while flange means 21 correspondinglyincludes a top section 21a, a bottom section 21b, and side sections 21cand 21d. These sections of the flange means 20 and 21 form extensions,respectively, of the top, bottom and side panels when the oven is in itserect condition. The flange means 20 provides a storage compartment 22,while the flange means 21 provides a storage compartment 23. Front panel10, which includes door 11, forms a closure for the outside ofcompartment 22, while rear panel 12 forms a closure for the outside ofcompartment 23. The inner facing sides of the storage compartments 22and 23 are open when the oven is erect.

Still having particular reference to FIGS. 14 and 15, it will be notedthat the side panels 13, 14 respectively include vertical sections 13a,13b, and 14a, 14b. These sections are hingedly connected at theiradjacent inner edge portions as indicated at 130 ad 14c. As indicated inFIG. 3, the sections 13a, 13b, and 14a, 14b, are hinged to fold inwardlyso that the sections of each panel are superimposed when the oven iscollapsed.

As shown more clearly in FIGS. 14 and 15, the outer vertical edgeportions of the side panel sections 13a, 13b, and 14a, 14b, are hingedlyconnected to the respective inner edge portions of the flange means sidesections. In the illustration given, panel section 130 is hingedlyconnected at 24 to flange section 20d, panel section 13b is hingedlyconnected at 25 to flange section 21d, panel section 14:: is hingedlyconnected at 26 to flange section 200, and panel section 1412 ishingedly connected at 27 to flange section 21c. This hinging permits theside panel sections 13a, 13b, and 14a, 14b to fold inwardly aspreviously described, while remaining attached to the flange sections.

The adjacent one of the outer edge portions of top panel 15 is hingedlyconnected to the inner edge portion of the top section of one of saidflange means. .Also, one of the outer edge portions of the bottom panel16 is hingedly connected to the inner edge portion of the bottom sectionof the other of said flange means. In the illustration given, top panel15 is hingedly connected at 28 to top section 20a of flange means 20,while bottom panel 16 is hingely connected at 29 to bottom section 21bof flange means 21. This arrangement permits the top and bottom panelsto fold inwardly when said oven is collapsed to form closures for thefacing sides of the storage compartments 22 and 23. In the illustrationgiven, top panel 15 folds downwardly to provide a closure for the innerside of compartment 22, while bottom panel 16 folds upwardly to providea closure for the inner side of compartment 23, as indicated,respectively, in FIGS. 10 and ll.

In accordance with the present invention, storage compartment 22 may beused for storing rack 19, while storage compartment 23 is employed forstoring the bafile 18. In FIG. 10, the rack 19 is shown within thestorage compartment 22, and in FIG. 11, the bafiie 18 is shown as it ismoved into the storage compartment 23 while remaining attached to thebottom panel 16.

As indicated in FIG. 15, bottom panel 16 includes a central opening 28,which may :be centered over the top of the stove burner. The baffle 18is mounted over the top of the opening, including a depressed centralportion 18a and raised side portions 18b and 180. The outer ends ofcentral portion 18a may be connected to panel 16 by suitable rivets asindicated at 29 and 30 in FIG. 15. The configuration of baflie 18 isshown more clearly in FIG. 22. Support feet 18b and 18c may be providedrespectively at the outer corners of bafiie sections 18b and 18c.

Since the particular construction of baffle 18 is not of importance withrespect to the present invention, it will not be further describedherein. For the purpose of the present invention, the baffle 18 shouldbe dimensioned for storage in one of the compartments such as thecompartment 23. Preferably, baffie 18 projects upwardly from the top ofbottom panel 16 by a distance no greater than the width of flangesection 21 or the distance between rear panel 12 and hinge 29, therebypermitting baffle 18 to be fully received within compartment 23 whenbottom 16 extends vertically.

The particular construction of rack 19 is also not of importance for thepurpose of this invention. As shown in FIGS. 8, 9, and 15, the rackincludes a perimetric frame 19:: with spaced cross rods 19b. Oppositeends of the frame 19a are provided with insert extensions 190, whichcooperate with vertically-spaced slots in the side panels 13 and 14,such as the slots 31 as shown in FIG. 14. In the illustration given,rack 19 is rectangular, being longer in one dimension than the other,the insert extensions 19 being provided on the short sides.Correspondingly, front and rear panels 10 and 11 are somewhat wider thanthe side panels 13 and 14, while the front, rear and side panels have aheight which is at least as great as the width of the front and rearpanels 10, 12. Preferably, the front, rear and side panels have asomewhat greater height than the width of the front and rear panels,thereby permitting a snug fit for the rack 19 when extending in its longdimension between the sides 13 and 14, while the rack fits easily withinthe compartment 22 when its long dimension extends vertically therein.It will be understood that these dimensions can be varied considerablywhile still permitting rack 19 to be stored in the compartment 22. Ingeneral, means should be provided for detachably mounting the rack toextend horizontally across the interior space of the oven when the ovenis erect, and said rack should be dimensioned for unmounted storage inthe one of the storage compartments for which the top panel 15 providesa closure when the oven is collapsed.

To permit the oven to collapse to the most compact condition, it isdesirable to have the top and bottom panels hingedly connected to theirrespective flange sections along lines which are offset outwardly withrespect to the plane intersecting the hinge connections between the sidepanel sections and the side sections of the same flange means. Forexample, the hinge means 28 which connects top panel 15 with top flangesection 20a is offset outwardly (toward front panel 10) from the planeformed by the hinge means 24 and 26, which respectively connect sidepanel 13 to side flange 20d, and side panel 14 to side flange 200.Similarly, the hinge means 29 which connects the bottom panel 16 tobottom flange 21b is offset outwardly (toward rear panel 12) withrespect to the plane of hinge means 25 and 27 which respectively connectside panel 13 to side flange 21d and side panel 14 to side flange 210.The relationships of these various hinge means are shown more clearly inFIGS. 14 and 15. In this preferred construction, the sections 13a, 13band 14a, 14b of the side panels may be folded inwardly in flat,superposed condition between the downwardly folded top panel 15 and theupwardly folded bottom panel 16.

A preferred means for releasably connecting the side edges of the topand bottom panels to the adjacent side edges, respectively, of the sidepanels is shown in FIG. 16. For example, the upper edge portion of sidepanel section 14a may be provided with an inwardly formed portion 32which provides a socket or slot 33 for receiving a tab 34 which isformed in the downwardly-extending side flange 15a of top 15.Preferably, at least two of the cooperating tabs and sockets areprovided at each of the adjacent edges of top panel 14, bottom panel 16,and side panels 13 and 14. With this construction, the tabs 34 and thesockets 32 may be formed integrally on either of the adjacent edgeportions of the side and top panels or the side and bottom panels. Asindicated in FIG. 16, the tabs 34 are insertable in the sockets 32 asthe top and bottom panels are moved from their collapsed to their erectposition.

In FIGS. l8-2l, there is shown a preferred latching means, whichfunctions as a dual purpose latch. As shown in FIGS. 20 and 21, thelatching means is operative to latch the top and bottom panels in theirerect positions, while as shown in FIGS. 18 and 19 the latching means isalso operative for latching the oven in its collapsed position. Morespecifically, the latching means should include at least two dualfunction latches, one of the latches being effective to latch the toppanel in its erect position, the other of the latches being effective tolatch the bottom panel in its erect position, and both latches beingeffective to latch the oven in its collapsed position.

In the illustration given, the latching means includes as its principalelement a-lever 11 designated generally by the number 35. As shown inFIG. 17, the lever 35 may comprise an angular or crank-shaped memberhaving an outwardly-extending operating arm 36 terminating in a fingerhold 37. Lever 35 also includes an inwardlyextending latching arm 38which terminates in a laterallyextending attachment tab 39 adjacent arecess 40. The central portion 41 of the arm is provided with an opening42 by means of which the arm may be pivotally attached to the undersideof the flange section, as shown in FIGS. 18-21 with respect to flangesection 21a. In the illustration given, a rivet 43 is employed for thepivotal attachment.

Referring now particularly to FIGS. 18 and 19, it will be seen that thetop panel 15 is in its downwardly-extending, collapsed position where itcloses the inner side of compartment 22. In alignment with the latchlever 35, and immediately below the hinge means 28, the upper portion oftop panel 15 (as shown in FIG. 18) is provided with a slot 44 forreceiving the outer end portion of the latching arm 38. The latch issecured when the recess 40 is extended around the portion 15b of the toppanel which adjoins the left-hand side (as shown in FIG. 18 of recess44. In this position, the attachment tab 39 will be within thecompartment 22 behind the wall portion 15b, as shown more clearly inFIG. 19. In the illustration given, the upper portion of rear wall 12 inalignment with latchinglever 35 is provided with a slot 12b through.which extends the operating arm 36, the finger hold 37 being on theoutside wall 12, as shown. This permits the lever 35 to be operated fromthe outside of the oven. In the unlatched position, the operating arm 36will project outwardly'beyond wall 12, while in the latched position, asshown in FIG. 19, the finger hold 37 will lie adjacent the wall 12.

In FIGS. 20 and 21, the lever latch 35 is illustrated performing itsalternate function of holding the top panel 15 in its erect position. InFIG. 20, the lever 35 is shown in its unlatched position, with theoperating arm 36 extending outwardly from the slot 12a. For the purposeof clarity, the top flange section 21a is shown in slightly separatedrelationfrom the top panel 15. However, it will. be understood that thedownwardly-turned edge 150 of the panel lies underneath the inner edgeof the flange section 21a, as shown more clearly in FIG. 21. The latch35 is then moved to closed position by meansof finger hold 37, whichcauses the latching arm 38 to move beneath the edge 15c, thereby holdingthe top panel 15 in its erect, horizontal position, as shown moreclearly in FIG. 21. The slots 45 in top panel 15 is a vent for the topof the oven. Another lever latch 35', identical in construction andoperation to latch 35, is provided adjacent the bottom of front panelfor cooperating with a slot 44 in bottom panel 16. Inthe illustrationgiven, front panel 10, as shown more clearly in FIGS. 14 and 15,provides a central opening 46, which is defined by the integral,inwardly-turned flanges 10a, 10b, 10c, and 10d. One of the verticalsides of the door 11 is hingedly connected at 47 to the front panel 10adjacent flange 10c. As shown, for example, in FIGS. 4 and 6, door 11may be provided with a suitable latching means, including a knob 46 onthe outside of the door for operating a latch 47 on the inside ofthedoor, which engages the inside of flange 10d. Since the construction andoperation of such latches are well known in the art, it is not believedit will be necessary to further describe them'hereiu.

The oven may be provided with a suitable heat indicator. In theillustration given, a thermometer 48 is mounted in the upper portion ofdoor 11, as indicated particularly in FIGS. 4, 6, and 14.

The oven as described herein may be manufactured by known procedures andtechniques. Most of the components of the oven can be advantageouslyfor-med from sheet metal, such as low carbon steel. Steel wire may beused for forming the rack 19. Wherever possible, it is preferred to formthe parts as integral members. For example, the flange sections 20a,20b, 20c, and 20d, and 21a, 21b, 21c, and 21d can be respectively formedintegrally with the panels 10 and 12, as shown more clearly in FIGS. 14and 15.

OPERATION The operation of the collapsible oven of this invention willbe largely apparent from the foregoing description. However, it may bebriefly summarized as follows, with particularly reference to FIGS.2-13.

In FIG. 2, the oven is shown in its collapsed position, with the leverlatches 35 closed. The latches are opened as indicated in FIG. 3, andthe front and rear panels are pulled apart to expand the oven in thedirection indicated by the arrows.

The bottom 16 is then swung downwardly into place, care being taken toinsert the tabs in the corresponding sockets to connect the side edgeportions of the bottom 16 with the adjacent edge portions of the sides13 and 14. The bottom may then be latched in place by moving the lowerleve'r arm to its closed or secured position, as indicated in FIG. 5.

' The top 15 is then swung upwardly, as indicated by the arrow in FIG.5, and latched in place by moving the upper lever 35 to its closedposition, as indicated by the arrow in-FIG. 6.

As the final step in the assembly, the door 11 is opened, as shown inFIG. 6, and the rack 19 is removed through the door opening 46. In theillustration given, the rack 19 has been stored with its long dimensionextending upwardly,as shown more clearly in FIG. 8. The rack is thenturned to the'position shown in FIG. 9. It is then reinserted throughdoor opening 46 into the interior of the oven, and positioned in theselected slots at the desired elevation, as indicated in FIG. 7. Theinsert extensions may first be extended through the slots in the sidewall 13, as shown in FIG. 7, and then the other end of the rack moveddownwardly, as indicated by the arrow, to insert the other extensions inthe corresponding slots in the other side wall 14.

The oven may be collapsed by reversing the sequence just described. Therequired steps are illustrated in FIGS. l013. As shown in FIG. 10, thegrate 19 is first removed, turned so that its long dimension extendsupwardly, and reinserted for storage in the compartment 22. The top 15is then released and swung downwardly to close the inside of thecompartment 22.

The bottom panel 1 6 is then released and swung upwardly, as shown inFIG. 11, the baffle 18 being swung into the compartment 23 for storagetherein.

The sides 13 and 14 are then folded inwardly, and the oven collapsed, asshown in FIG. 12. The latches 35 are then moved to their securedposition to lock the oven in its collapsed condition, which is shown inFIG. 13.

While, in the foregoing specification, this invention has been describedin relation to a preferred embodiment thereof, and many details havebeen set forth for purpose of illustration, it will be apparent to thoseskilled in the art that the invention is susceptible to additionalembodiments and that certain of the details described herein can bevaried considerably without departing from the principles and scope ofthe invention.

We claim: v

1. In a collapsible oven for a camp stove having stable erect andcollapsed positions,

said oven being of rectilinear configuration and having an interiorspace enclosed by front, back, side, top and bottom panels,

the construction comprisin storage compartment-providing flange meansextending inwardly from the perimeters of said front and back panels, 1

said flange means including top, bottom, and side sections formingextensions, respectively, of said top, bottom, and side panels when saidoven is in its erect position,

the inner facing sides of the storage compartments provided by saidflange means being open when said oven is erect,

said side panels including vertical sections hingedly connected at theiradjacent inner edge portions to fold inwardly so that the sections ofeach side panel are superposed when said oven is collapsed,

the outer vertical edge portions of said side panel sections beinghingedly connected to the respective inner edge portions of said flangemeans side sections,

one of the outer edge portions of said top panel being hingedlyconnected to the inner edge portion of the top section of one of saidflange means,

one of the outer edge portions of said bottom panel being hingedlyconnected to the inner edge portion of the bottom section of the otherof said flange means,

each of said top and bottom panels being foldable inwardly when saidoven is collapsed to form a closure respectively for one of the saidfacing sides of said storage compartments, and

a flame and heat baflie mounted on the top of said bottom panel andprojecting upwardly therefrom,

said baflie being dimensioned for storage in the one of said storagecompartments to which said bottom panel provides said closure,

said balfle being movable into a storage compartment when said oven iscollapsed while remaining attached to said bottom panel.

2. The collapsible oven constructionof claim 1 wherein said oven alsoincludes a support rack,- and means for detachably mounting said rack toextend horizontally across said interior space when said oven is erect,said rack being dimensioned for unmounted storage in the one of saidstorage compartments to which said top panel provides said closure.

3. The collapsible oven construction of claim 1 wherein said top andbottom panels are hingedly connected to their respective flange sectionsalong lines which are offset outwardly with respect to the planeintersecting the hinged connections between the side panel sections andthe side sections of the same flange means.

4. In a collapsible oven for a camp stove having stable erect andcollapsed positions,

said oven being of rectilinear configuration and having an interiorspace enclosed by front, back, side, top and bottom panels, theconstruction comprising: 7

storage compartment-providing flange means extending inwardly from theperimeter of said front and back panels, said flange means includingtop, bottom, and side sections forming extensions, respectively, of saidtop, bottom, and side panels when said oven is in its erect position,

the inner facing sides of the storage compartments provided by saidflange means being open when said oven is erect,

said side panels including vertical sections hingedlyconnected at theiradjacent inner edge portions to fold inwardly so that the sections ofeach side panel are superposed when said oven is collapsed,

the outer vertical edge portions of said side panel sec- 10115 beinghingediy connected to the respective inner edge portions of said flangemeans side sections,

one of the outer edge portions of said top panel being hingedlyconnected to the inner edge portion of the top section of one of saidflange means,

one of the outer edge portions of said bottom panel being hingedlyconnected to the inner edge portion of the bottom section of the otherof said flange means,

each of said top and bottom panels being foldable inwardly when saidoven is collapsed to form a closure respectively of one of the saidfacing sides of said storage compartments, said top panel forming astorage compartment with said front panel and said bottom panel forminga storage compartment with said back panel,

said top and bottom panels being hingedly connected to their respectiveflange sections along lines which are offset outwardly with respect tothe plane intersecting the hinge connections between the side panelsections and the side sections of the same flange means,

an outwardly opening hinged door forming a part of said front panel,

a detachable support rack for mounting to extend horizontally withinsaid oven, said rack being dimensioned for unmounted storage in the oneof said compartments formed by said top panel and said front panel, saidrack being accessible through said front panel door for manipulationinto and out of said storage compartment,

a flame and heat baflle mounted on the top of said bottom panel andprojecting upwardly therefrom, said baffle being dimensioned for storagein the one of said storage compartments formed by said bottom panel andsaid rear panel, said baffle being insertable in its storage compartmentas said oven is collapsed while remaining attached to said bottom panel.

5. In a collapsible oven for a camp stove having stable erect andcollapsed positions.

said oven being of rectilinear configuration and having an interiorspace enclosed by front, back, side, top and bottom panels,

the construction comprising:

storage compartment-proving flange means extending inwardly from theperimeters of said front and back panels,

said flange means including top, bottom, and side sections formingextensions, respectively, of said top, bottom, and side panels when saidoven is in its erect position,

the inner facing sides of the storage compartments pro vided by saidflange means being open when said oven is erect,

said side panels including vertical sections hingedly connected at theiradjacent inner edge portions to fold inwardly so that the sections ofeach side panel are superposed when said oven is collapsed,

the outer vertical edge portions of said side panel sections beinghingedly connected to the respective inner edge portions of said flangemeans side sections,

one of the outer edge portions of said top panel being hingedlyconnected to the inner edge portion of the top section of one of saidflange means,

one of the outer edge portions of said bottom panel being hingedlyconnected to the inner edge portion of the bottom section of the otherof said flange means,

each of said top and bottom panels being foldable inwardly when saidoven is collapsed to form a closure respectively for one of the saidfacing sides of said storage compartments, and

latching means for latching respectively said top and bottom panels intheir erect positions and for latching said oven in its collapsedposition,

said latching means including at least two dual function latches,

one of said latches being effective to latch said top panel in its erectposition, the other of said latches being eitective to latch said bottompanel in its erect position, both of said latches aiso being effectiveto latch said oven in its collapsed position.

6. The collapsible oven construction of claim wherein each of saidlatches includes a lever having an outwardly-extending operating arm, aninwardly-extending latching arm, and a central position pivotallyconnected to the one of said flange sections which forms an extension ofthe one of said top and bottom panels latched thereby in its erectposition, said latching arm cooperating with the adjacent edge portionof the said latched panel to form a connection therewith which can beselectively secured and released by moving said operating arm, saidlatched panel also providing a slot therein in a position opposite saidlatching arm when said latched panel is in its collapsed position, andsaid latching arm being movable into and out of said slot by means ofsaid operating arm for selectively securing and releasing said latchingarm to said panel.

7. In a collapsible oven for a camp stove having stable erect andcollapsed positions,

said oven being of rectilinear configuration and having an interiorspace enclosed by front, back, side, top and bottom panels, theconstruction comprising:

storage compartment-providing flange means extending inwardly from theperimeters of said front and back panels, said flange means includingtop, bottom, and side sections forming extensions, respectively, of saidtop, bottom, and side panels when said oven is in its erect position,

the inner facing sides of the storage compartments provided by saidflange means being open when said oven is erect,

said side panels including vertical sections hingedly connected at theiradjacent inner edge portions to fold inwardly so that the sections ofeach side panel are superposed when said oven is collapsed, the outervertical edge portions of said side panel sections being hingedlyconnected to the respective inner edge portions of said flange meansside sections,

one of the outer edge portions of said top panel being hingedlyconnected to the inner edge portion of the top section of one of saidflange means, one of the outer edge portions of said bottom panel beinghingedly connected to the inner edge portion of the bottom section ofthe other of said flange means,

each of said top and bottom panels being foldable inwardly when saidoven is collapsed to form -a closure respectively for one of the saidfacing sides of said storage compartments,

said top and bottom panels being hingedly connected to their respectiveflange sections along lines which 1d are oflset outwardly with respectto the plane intersecting the hinge connections between the side panelsections and the side sections of the same flange means,

a detachable support rack for mounting to extend horizontally withinsaid oven, said rack being dimensioned for unmounted storage in the oneof said compartments to which said top panel provides said closure,

a flame and heat baflie mounted on the top of said bottom panel andprojecting upwardly therefrom, said bafile being dimensioned for storagein the one of said storage compartments to which said bottom panelprovides said closure, and

latching means for latching respectively said top and bottom panels intheir erect positions and for latching said oven in its collapsedposition,

said latching means including at least two dual function latches,

one of said latches being effective to latch said top panel in its erectposition, the other of said latches being effective to latch said bottompanel in its erect position, both of said latches also being effectiveto latch said oven in its collapsed position.

8. The collapsible oven construction of claim 7 wherein each of saidlatches includes a lever having an outwardlyextending operating arm, aninwardly-extending latching arm, and a central position pivotallyconnected to the one of said flange sections which forms an extension ofthe one of said top and bottom panels latched thereby in its erectposition, said latching arm cooperating with the adjacent edge portionof the said latched panel to form a connection therewith which can beselectively secured and released by moving said operating arm, saidlatched panel also providing a slot therein in a position opposite saidlatching arm when said latched panel is in its collapsed position, andsaid latching arm being movable into and out of said slot by means ofsaid operating arm for selectively securing and releasing said latchingarm to said panel.

References Cited by the Examiner UNITED STATES PATENTS 963,769 7/1910Johnson et a1. 312-262 X 1,456,382 5/1923 Kincannon 126-275 2,454,57111/1948 Rom 126-275 2,576,750 11/1951 Clark 312-259 2,934,389 4/1960Krey 312-262 X FOREIGN PATENTS 23,041 1914 Great Britain.

FREDERICK L. MATTESON, JR., Primary Examiner. E. G. FAVORS, AssistantExaminer.

1. IN A COLLAPSIBLE OVEN FOR A CAMP STOVE HAVING STABLE ERECT ANDCOLLAPSED POSITIONS. SAID OVEN BEING OF RECTILINEAR CONFIGURATION ANDHAVING AN INTERIOR SPACE ENCLOSED BY FRONT, BACK, SIDE, TOP AND BOTTOMPANELS, THE CONSTRUCTION COMPRISING: STORAGE COMPARTMENT-PROVIDINGFLANGE MEANS EXTENDING INWARDLY FROM THE PERIMETERS OF SAID FRONT ANDBACK PANELS, SAID FLANGE MEANS INCLUDING TOP, BOTTOM, AND SIDE SECTIONSFORMING EXTENSIONS, RESPECTIVELY, OF SAID TOP, BOTTOM, AND SIDE PANELSWHEN SAID OVEN IS IN ITS ERECT POSITION, THE INNER FACING SIDES OF THESTORAGE COMPARTMENTS PROVIDED BY SAID FLANGE MEANS BEING OPEN WHEN SAIDOVEN IS ERECT, SAID SIDE PANELS INCLUDING VERTICAL SECTIONS HINGEDLYCONNECTED AT THEIR ADJACENT INNER EDGE PORTIONS TO FOLD INWARDLY SO THATTHE SECTIONS OF EACH SIDE PANEL ARE SUPERPOSED WHEN SAID OVEN ISCOLLAPSED, THE OUTER VERTICAL EDGE PORTIONS OF SAID SIDE PANEL SECTIONSBEING HINGEDLY CONNECTED TO THE RESPECTIVE INNER EDGE PORTIONS OF SAIDFLANGE MEANS SIDE SECTIONS, ONE OF THE OUTER EDGE PORTIONS OF SAID TOPPANEL BEING